tube

Dobhoff tube a small-lumen feeding tube that can be advanced into the duodenum.

drainage tube a tube used in surgery to facilitate escape of fluids.

Drieling tube a double-lumen tube having a metal weight at one end to carry it past the stomach into the duodenum. At the other end are two tails, one used to collect gastric specimens and the other to collect specimens from the duodenum. The tube is used in the secretin test for pancreatic exocrine function.

endobronchial tube a single- or double-lumen tube inserted into the bronchus of one lung and sealed with an inflatable cuff, permitting ventilation of the intubated lung and complete deflation of the other lung; used in anesthesia and thoracic surgery.

feeding tube one for introducing high-caloric fluids into the stomach; see also tube feeding.

tube feeding a means of providing nutrition via a feeding tube inserted into the gastrointestinal tract; it may be done to maintain nutritional status over a period of time or as a treatment for malnutrition. It can be used as the only source of nutrition or as a supplement to oral feeding or parenteral nutrition.

Patients who may require tube feeding include those unable to take in an adequate supply of nutrients by mouth because of the side effects of chemotherapy or radiation therapy, those with depression or some other psychiatric disorder, and those suffering from severe hypermetabolic states such as burns or sepsis, or malabsorption syndromes. Other conditions that may require tube feeding include surgery or trauma to the oropharynx, esophageal fistula, and impaired swallowing such as that which occurs following stroke or that related to neuromuscular paralysis.

There are commercially prepared formulas for tube feeding. Some contain all six necessary nutrients (carbohydrates, fats, proteins, vitamins, minerals, and trace elements) and need no supplement as long as they are given in sufficient volume to meet nutritional and caloric needs. Other types of tube feeding formulas are incomplete and therefore will require some supplementation. Choice of formula is based on the patient's particular needs, presence of organ failure or metabolic aberration, lactose tolerance, gastrointestinal function, and how and where the feeding is to be given, that is, via nasogastric, gastrostomy, or enterostomy tube.

Patient Care. In addition to frequent and periodic checking for tube placement and monitoring of gastric residuals to prevent aspiration, other maintenance activities include monitoring effectiveness of the feeding and assessing the patient's tolerance to the tube and the feeding. Special mouth care is essential to maintain a healthy oral mucosa. A summary of the complications related to tube feeding, their causes and contributing factors, and interventions to treat or prevent each complication is presented in the accompanying table.

fermentation tube a U-shaped tube with one end closed, for determining gas production by bacteria.

Levin tube a gastroduodenal catheter of sufficiently small caliber to permit transnasal passage; see illustration.

Two types of nasogastric tubes. From Ignatavicius et al., 1995.

Linton tube a triple-lumen tube with a single balloon used to control hemorrhage from esophageal varices. Once it is positioned under fluoroscopic control and inflated, the balloon exerts pressure against the submucosal venous network at the cardioesophageal junction, thus restricting the flow of blood to the esophageal varices.

Rehfuss tube a single-lumen oral tube used to obtain specimens of biliary secretions for diagnostic study; it is weighted on one end so that it can be passed through the mouth and positioned at the point where the bile duct empties into the duodenum. See also biliary drainage test.

Salem sump tube a double-lumen nasogastric tube used for suction and irrigation of the stomach. One lumen is attached to suction for the drainage of gastric contents and the second lumen is an air vent. See illustration.

T-tube one shaped like the letter T and inserted into the biliary tract to allow for drainage of bile; it is generally left in place for 10 days or more in order to develop a tract through which bile can drain after the tube is removed. A T-tube cholangiogram is usually performed prior to removal of the tube in order to determine that the common duct is patent and free of stones. If stones are found they can be removed through the tube tract by instruments inserted under x-ray guidance.

test tube a tube of thin glass, closed at one end; used in chemical tests and other laboratory procedures.

thoracostomy tube a tube inserted through an opening in the chest wall, for application of suction to the pleural cavity; used to drain fluid or blood or to reexpand the lung in pneumothorax. See also chest tube.

ventilation tube a tube inserted after myringotomy in chronic cases of middle ear effusion, such as in secretory or mucoid otitis media; it provides ventilation and drainage for the middle ear during healing, and is eventually extruded. Called also tympanostomy tube.

x-ray tube a glass vacuum bulb containing two electrodes; electrons are obtained either from gas in the tube or from a heated cathode. When suitable potential is applied, electrons travel at high velocity from cathode to anode, where they are suddenly arrested, giving rise to x-rays.

tracheostomy tube a curved endotracheal tube that is inserted into the trachea through a tracheostomy.

uterine tubefallopian tube; a slender tube extending from the uterus toward the ovary on the same side, for passage of oocytes to the cavity of the uterus and the usual site of fertilization.

Uterine, or fallopian, tube.

Wangensteen tube a small nasogastric tube connected with a special suction apparatus to maintain gastric and duodenal decompression.

x-ray tube a vacuum tube used for the production of x-rays; when a suitable current is applied, high-speed electrons travel from the cathode to the anode, where they are suddenly arrested, giving rise to x-rays.

tube

tube,

n a section of tubing attached to the buccal side of a molar band in a horizontal position, serving as an attachment for the labial arch wire, which slides into the tube.

tube, Coolidge,

n.pr a radiographic tube in which the gas pressure is purposely made so low that it plays no role in the operation of the tube, the operation of which depends on the emission of electrons by the heated filament of the cathode. See also radiographic tube, Coolidge.

tube, discharge,

n a vacuum tube in which a high-voltage electric current is discharged (e.g., a radiographic tube).

tube, endotracheal,

n a plastic tube inserted into the trachea to permit the passage of air to and from the lungs. Tubes are available in varying diameters, depending on the size and age of the patient.

tube, horizontal,

n a metal tube attachment that is placed in a horizontal position on the buccal surface of each anchor molar tooth to allow for the insertion of the labial arch wire.

tube, intubation,

n a tube for insertion into the larynx through the oral cavity.

tube, line focus,

n a radiographic tube in which the target face is about 20 inches (50 cm) from the cathode face. The focal spot is rectangular, with the length approximately three times the width. The acute angle provides an effective focal spot area approximately square and a fraction of the actual area in size.

tube, nasogastric

n a plastic tube inserted through the nose, down the esophagus, and into the stomach. It is used to remove the stomach's contents or to pass food directly to the stomach. Also known as an NG tube.

tube, protective, housing,

n a radiographic tube enclosure that provides radiation protection.

tube, protective, housing, diagnostic,

n a tube housing that reduces the leakage of radiation to, at most, 0.10 r/hr at a distance of 1 mm from the tube target when the tube is operating at its maximal continuous rated voltage.

tube, protective, housing, therapeutic,

n a tube housing that reduces the leakage of radiation to, at most, 1 r/hr at a distance of 1 m from the tube target when the tube is operating at its maximal continuous rated current for the maximal rated voltage.

tube, right-angle,

n a radiographic tube in which the target is at right angles to the cathode.

a vacuum tube that produces an electric current proportional to the intensity of light falling on its photocathode; it is sensitive enough to detect single photons.

tube rating chart

provided by the manufacturer and containing the specifications for the safe operating limits of the x-ray tube in terms of kilovolt peak, milliamps and time.

stomach tube

a flexible tube used for introducing food, medication, or other material directly into the stomach, or for removal of undesirable contents from the stomach. It can be passed into the stomach via the nose or mouth. Passage via the mouth requires the protection of a mouth speculum.

a tube of thin glass, closed at one end; used in chemical tests and other laboratory procedures.

thoracostomy tube

one inserted through an opening in the chest wall for application of suction to the pleural cavity to facilitate re-expansion of the lung in spontaneous pneumothorax. See also chest tube (above).

Patient discussion about tube

Q. can you get pregnant with your tubes tied if your tubes are tied can you get pregnant

A. you can but the chances are slim to none,plus if you do you can sue the doctors, 99% no,

Q. I have missed 2 periods and had my tubes tied. What could be wrong? I went to the doctor and she didnt even do an exam. She said dont worry until I have missed for 6 months.

A. go to enather dr. you have to be shure.

Q. She had an infection in her fallopian tubes. She is recovering now, but can she get pregnant again? My sister had a very bad pregnancy where she had lost her first child. She had an infection in her fallopian tubes. As it was an ectopic pregnancy, she had an operation where they made a small incision in the fallopian tube and removed the embryo. She was depressed for quite a while as she was looking forward to enjoying her new baby. She is recovering now, but can she get pregnant again?

A. i think that was an ectopic pregnancy. of course she can get pregnant again, although the past history of tubal pregnancy increases the risk of developing another ectopic pregnancy in the future. but don't worry, all your sister need to is always consult her health and future-pregnancy condition with her ob-gyn specialist.

i believe that what happened to your sister was non-complicated ectopic pregnancy, because the doctor was just doing the minimal invasive surgery in her fallopian tube. it still has the risks of having another ectopic one in her future pregnancy, but with a complete medical check-up and work-up, i'm sure she will just be doing well.

i just wrote a brief note about ectopic pregnancy, in case you want to read that :http://doctoradhi.com/blog/2009/01/ectopic-pregnancy/

This ski area put in a snow-play area and tubing hill next to its beginner slope, primarily because small kids and grandparents wanted to touch the snow and were wandering into dangerous territory at the bottom of the ski runs.

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